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Related Concept Videos

Schizophrenia01:17

Schizophrenia

Schizophrenia, a term introduced by Swiss psychiatrist Eugen Bleuler in 1911, describes a severe psychological disorder marked by profound disruptions in attention, thought processes, language, emotion, and interpersonal relationships. The core feature of schizophrenia is psychosis — a state characterized by a fundamental detachment from reality. This disconnection manifests through distorted logic, impaired perception, and atypical behavior, severely affecting the lives of those diagnosed.
Psychological and Sociocultural Causes of Schizophrenia01:29

Psychological and Sociocultural Causes of Schizophrenia

Schizophrenia, a complex psychiatric disorder, has been historically misunderstood. Early psychological theories attributed its origins to childhood trauma and unresponsive parenting. However, contemporary research largely rejects these notions, favoring the vulnerability-stress hypothesis. This model proposes that individuals with a genetic predisposition to schizophrenia may develop the disorder following exposure to significant environmental stressors. Notably, studies on high-risk...
Positive Symptoms Schizophrenia: Hallucinations and Delusions01:26

Positive Symptoms Schizophrenia: Hallucinations and Delusions

Schizophrenia is a complex psychiatric disorder characterized by a range of symptoms that significantly impact cognition, behavior, and emotional regulation. Among these, the positive symptoms stand out as they involve the addition or exaggeration of normal mental functions, deviating markedly from typical behavior and perception. Hallucinations and delusions are prominent positive symptoms, each profoundly affecting the individual's experience of reality.
Hallucinations
Hallucinations in...
Biological Causes of Schizophrenia01:29

Biological Causes of Schizophrenia

Schizophrenia, a severe psychiatric disorder, arises from a complex interplay of biological factors, including genetic predisposition, structural brain abnormalities, neurotransmitter dysregulation, and developmental irregularities. These factors collectively contribute to the onset and progression of the disorder, which typically manifests in late adolescence or early adulthood.
Genetic Factors in Schizophrenia
The genetic basis of schizophrenia is strongly supported by family and twin studies.
Positive Symptoms of Schizophrenia: Hallucinations and Delusions01:30

Positive Symptoms of Schizophrenia: Hallucinations and Delusions

Schizophrenia is a complex mental health disorder that can manifest with various positive symptoms, including thought, movement, and behavior disorders. These symptoms significantly disrupt cognitive and motor functions, leading to profound effects on an individual's ability to engage with the world.
Thought Disorders
Disorganized and unusual thought processes mark thought disorders in schizophrenia. One key feature is disorganized speech, where an individual's conversation includes loosely...
Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders01:27

Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders

Schizophrenia is a neurodevelopmental disorder whose origins are rooted in complex genetic components. Despite our burgeoning understanding, the pathophysiology of this disorder remains incompletely deciphered.
Researchers have identified genetic factors that increase susceptibility to schizophrenia, underscoring the intricate interplay between genetics and environment in disease development. At the core of schizophrenia's pathophysiology is excessive dopaminergic neurotransmission within the...

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Related Experiment Video

Updated: May 29, 2026

Development of a Virtual Reality Assessment of Everyday Living Skills
10:32

Development of a Virtual Reality Assessment of Everyday Living Skills

Published on: April 23, 2014

Why not "double schizophrenia"?

W Sperling1, H Müller

  • 1Department of Psychiatry and Psychotherapy, University of Erlangen-Nuremberg, Erlangen, Germany.

Medical Hypotheses
|September 2, 2011
PubMed
Summary
This summary is machine-generated.

Schizophrenia may present as "double schizophrenia," with distinct prodromal neurotic-dissociative symptoms preceding cognitive changes. This subtype may require integrated neuroleptic and psychotherapy for effective treatment.

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Published on: September 8, 2021

Area of Science:

  • Psychiatry
  • Clinical Psychology
  • Neuroscience

Background:

  • Schizophrenia is typically understood to have a prodromal phase, acute phases, and residual formation.
  • Some patients exhibit predominantly neurotic-dissociative symptoms before the onset of schizophrenia, distinct from primarily cognitive changes.

Purpose of the Study:

  • To explore the possibility of a
  • double schizophrenia
  • subtype characterized by preceding neurotic-dissociative symptoms.
  • To determine if this subtype exhibits different symptomatic progression compared to other forms of schizophrenia.

Main Methods:

  • Conceptual analysis of existing schizophrenia frameworks.
  • Comparative analysis of patient subgroups based on prodromal symptom presentation (cognitive vs. neurotic-dissociative).

Main Results:

  • The study proposes that a prodromal phase dominated by neurotic-dissociative symptoms could represent a distinct subtype, termed
  • double schizophrenia
  • .
  • This proposed subtype may differ symptomatically in its course from other forms of schizophrenia.

Conclusions:

  • The concept of
  • double schizophrenia
  • warrants further investigation.
  • If confirmed, this subtype may necessitate integrated treatment combining standard neuroleptic medication with enhanced psychotherapeutic interventions.